not dat i want to keep them caged..just dat now,i have a small open carrier which fits the three kittens..i oni caged them sometimes if they have not urinate or pass motion and i want to go to sleep..as my kittens are not yet train..im afraid if i let go wen im going to sleep,they will pass motion and urinate everywhere..they had already done that many times which made my room smelly..it always get on my parents nerves..but other tyms after they had pass motion and urinate,i will let them out for them to play around...im just interested in buying dat cage if its cheap as im a student and do not have plenty of money..niwae,u have any suggestion on how to toilet train kittens?